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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus for suspension smelting
Patent number
5,772,955
Issue date
Jun 30, 1998
Outokumpu Engineering Contractors Oy
Pekka Hanniala
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method and apparatus for feeding reaction gas and solids
Patent number
5,674,310
Issue date
Oct 7, 1997
Outokumpu Engineering Contractors Oy
Francisco Miralles
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for extracting metals from large solution flows and apparatu...
Patent number
5,662,871
Issue date
Sep 2, 1997
Outokumpu Engineering Contractors Oy
Bror Nyman
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for leaching nickel-copper matte employing substantially neu...
Patent number
5,628,817
Issue date
May 13, 1997
Outokumpu Engineering Contractors Oy
Sigmund Fugleberg
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method and apparatus for treatment sulphidic concentrates
Patent number
5,574,956
Issue date
Nov 12, 1996
Outokumpu Engineering Contractors Oy
Rolf Malmstrom
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for suspension smelting
Patent number
5,565,016
Issue date
Oct 15, 1996
Outokumpu Engineering Contractors Oy
Pekka Hanniala
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method and apparatus for forming controlled vortexes and for recirc...
Patent number
5,549,854
Issue date
Aug 27, 1996
Outokumpu Engineering Contractors Oy
Stig-Erik Hulthom
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method and apparatus for improving heat and dust recovery in a wast...
Patent number
5,505,434
Issue date
Apr 9, 1996
Outokumpu Engineering Contractors Oy
Launo L. Lilja
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing high-grade nickel matte from at least partly p...
Patent number
5,492,554
Issue date
Feb 20, 1996
Outokumpu Engineering Contractors Oy
Pekka Hanniala
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for oxidizing pulverous fuel with two gases having different...
Patent number
5,443,620
Issue date
Aug 22, 1995
Outokumpu Engineering Contractors Oy
Pentti J. Kaasinen
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Apparatus for feeding gases into a smelting furnace
Patent number
5,362,032
Issue date
Nov 8, 1994
Outokumpu Engineering Contractors Oy
Markus K. T. Ranki
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Grant
Apparatus for oxidizing pulverous fuel with two gases having differ...
Patent number
5,358,222
Issue date
Oct 25, 1994
Outokumpu Engineering Contractors Oy
Pentti J. Kaasinen
F27 - FURNACES KILNS OVENS RETORTS
Patents Applications
last 30 patents
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